I was able to wake up the first sleeper who wanted the potion. Then I used mind reading to learn what the other two needed. I went back to town and got the two items and went back to the sleepers. When I gave the 2nd sleeper the beer, he woke up, but I was frozen in place. I could open the menu screen, inventory, etc.. but I could not move and could not talk to him. I was able to save the game, but had to exit all the way out to windows. When I loaded that save game the 2nd sleeper immediately talked to me and I was able to continue on.
Then the same problem happened with the 3rd sleeper twice. First after she woke up just like it happened with the 2nd sleeper. So I repeated the work around and it worked. Then my character was frozen again after all 3 ran off.
When I did the work around that time, I was immediately drawn into a conversation with the girl who was no longer even there. Then I was able to continue on normally.